Question

classificar e resolver:{ 3x-2x+z=8}
{3y-4z=0}
{5z=15}

Answer 1

Classificar e resolver:
{ 3x-2x+z=8}
{3y-4z=0}
{5z=15}

5z = 15 
z = 15/5
z = 3

3y - 4z = 0
 3y - 4(3) = 0
3y - 12 = 0
3y = + 12
y = 12/3
y = 4

{ 3x-2x+z=8}


3x - 2x + z = 8
1x + z = 8
1x + 3 = 8
1x = 8 - 3
1x = 5
x = 5/1
x = 5